IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C
IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C
IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C
IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C IC693MDR390C
PLC控制系統(tǒng)主要由輸入部分、CPU、采樣部分、輸出控制和通訊部分組成,如圖1所示。輸入部分包括控制面板和輸入模板;采樣部分包括采樣控制模板、AD轉(zhuǎn)換模板和傳感器;CPU作為系統(tǒng)的核心,完成接收數(shù)據(jù),處理數(shù)據(jù),輸出控制信號(hào);輸出部分有的系統(tǒng)用到DA模板,將輸出信號(hào)轉(zhuǎn)換為模擬量信號(hào),經(jīng)過(guò)功放驅(qū)動(dòng)執(zhí)行器;大多數(shù)系統(tǒng)直接將輸出信號(hào)給輸出模板,由輸出模板驅(qū)動(dòng)執(zhí)行器工作;通訊部分由通訊模板和上位機(jī)組成。
因?yàn)镻LC本身的故障可能性極小,系統(tǒng)的故障主要來(lái)自外圍的元部件,所以它的故障可分為如下幾種:
。1)輸入故障,即操作人員的操作失誤;
■傳感器故障;
■執(zhí)行器故障;
■PLC軟件故障
這些故障,都可以用合適的故障診斷方法進(jìn)行分析和用軟件進(jìn)行實(shí)時(shí)監(jiān)測(cè),對(duì)故障進(jìn)行預(yù)報(bào)和處理。
PLC控制系統(tǒng)的故障診斷方法
PLC控制系統(tǒng)故障的宏觀診斷
故障的宏觀診斷就是根據(jù)經(jīng)驗(yàn),參照發(fā)生故障的環(huán)境和現(xiàn)象來(lái)確定故障的部位和原因。PLC控制系統(tǒng)的故障宏觀診斷方法如下:
■是否為使用不當(dāng)引起的故障,如屬于這類故障,則根據(jù)使用情況可初步判斷出故障類型、發(fā)生部位。常見的使用不當(dāng)包括供電電源故障、端子接線故障、模板安裝故障、現(xiàn)場(chǎng)操作故障等。
■如果不是使用故障,則可能是偶然性故障或系統(tǒng)運(yùn)行時(shí)間較長(zhǎng)所引發(fā)的故障。對(duì)于這類故障可按PLC的故障分布,依次檢查、判斷故障。首先檢查與實(shí)際過(guò)程相連的傳感器、檢測(cè)開關(guān)、執(zhí)行機(jī)構(gòu)和負(fù)載是否有故障:然后檢查PLC的I/O模板是否有故障:最后檢查PLC的CPU是否有故障。
■在檢查PLC本身故障時(shí),可參考PLC的CPU模板和電源模板上的指示燈。
■采取上述步驟還檢查不出故障部位和原因,則可能是系統(tǒng)設(shè)計(jì)錯(cuò)誤,此時(shí)要重新檢查系統(tǒng)設(shè)計(jì),包括硬件設(shè)計(jì)和軟件設(shè)計(jì)。
PLC控制系統(tǒng)的故障自診斷
故障自診斷是系統(tǒng)可維修性設(shè)計(jì)的重要方面,是提高系統(tǒng)可靠性必須考慮的重要問(wèn)題。自診斷主要采用軟件方法判斷故障部分和原因。不同控制系統(tǒng)自診斷的內(nèi)容不同。PLC有很強(qiáng)的自診斷能力,當(dāng)PLC出現(xiàn)自身故障或外圍設(shè)備故障,都可用PLC上具有的診斷指示功能的發(fā)光二極管的亮、滅來(lái)查找,
總體診斷
根據(jù)總體檢查流程圖找出故障點(diǎn)的大方向,逐漸細(xì)化,以找出具體故障,如圖2所示。
電源故障診斷
電源燈不亮,需對(duì)供電系統(tǒng)進(jìn)行診斷。如果電源燈不亮,首先檢查是否有電,如果有電,則下一步就檢查電源電壓是否合適,不合適就調(diào)整電壓,若電源電壓合適,則下一步就是檢查熔絲是否燒壞,如果燒壞就更換熔絲檢查電源,如果沒有燒壞,下一步就是檢查接線是否有誤,若接線無(wú)誤,則應(yīng)更換電源部件。
運(yùn)行故障診斷
電源正常,運(yùn)行指示燈不亮,說(shuō)明系統(tǒng)已因某種異常而終止了正常運(yùn)行。檢查流程如圖3所示.
圖3 運(yùn)行故障診斷流程圖
輸入輸出故障診斷
輸人輸出是PLC與外部設(shè)備進(jìn)行信息交流的通道,其是否正常工作,除了和輸入輸出單元有關(guān)外,還與聯(lián)接配線、接線端子、保險(xiǎn)絲等元件狀態(tài)有關(guān)。
出現(xiàn)輸入故障時(shí),首先檢查L(zhǎng)ED電源指示器是否響應(yīng)現(xiàn)場(chǎng)元件(如按鈕、行程開關(guān)等)。如果輸入器件被激勵(lì)(即現(xiàn)場(chǎng)元件已動(dòng)作),而指示器不亮,則下一步就應(yīng)檢查輸入端子的端電壓是否達(dá)到正確的電壓值。若電壓值正確,則可替換輸入模塊。若一個(gè)LED邏輯指示器變暗,而且根據(jù)編程器件監(jiān)視器、處理器未識(shí)別輸入,則輸入模塊可能存在故障。如果替換的模塊并未解決問(wèn)題且連接正確,則可能是I/O機(jī)架或通信電纜出了問(wèn)題。
出現(xiàn)輸出故障時(shí),首先應(yīng)察看輸出設(shè)備是否響應(yīng)LED狀態(tài)指示器。若輸出觸點(diǎn)通電,模塊指示器變亮,輸出設(shè)備不響應(yīng)。那么,首先應(yīng)檢查保險(xiǎn)絲或替換模塊。若保險(xiǎn)絲完好,替換的模塊未能解決問(wèn)題,則應(yīng)檢查現(xiàn)場(chǎng)接線。若根據(jù)編程設(shè)備監(jiān)視器顯示一個(gè)輸出器被命令接通,但指示器關(guān)閉,則應(yīng)替換模塊。
在診斷輸入/輸出故障時(shí),最佳方法是區(qū)分究竟是模塊自身的問(wèn)題,還是現(xiàn)場(chǎng)連接上的問(wèn)題。如果有電源指示器和邏輯指示器,模塊故障易于發(fā)現(xiàn)。通常,先是更換模塊,或測(cè)量輸入或輸出端子板兩端電壓測(cè)量值正確,模塊不響應(yīng),則應(yīng)更換模塊。若更換后仍無(wú)效,則可能是現(xiàn)場(chǎng)連接出問(wèn)題了。輸出設(shè)備截止,輸出端間電壓達(dá)到某一預(yù)定值,就表明現(xiàn)場(chǎng)連線有誤。若輸出器受激勵(lì),且LED指示器不亮,則應(yīng)替換模塊。如果不能從I/O模塊中查出問(wèn)題,則應(yīng)檢查模塊接插件是否接觸不良或未對(duì)準(zhǔn)。最后,檢查接插件端子有無(wú)斷線,模塊端子上有無(wú)虛焊點(diǎn)。
指示診斷
LED狀態(tài)指示器能提供許多關(guān)于現(xiàn)場(chǎng)設(shè)備、連接和I/O模塊的信息。大部分輸入/輸出模塊至少有一個(gè)指示器。輸入模塊常設(shè)電源指示器,輸出模塊則常設(shè)一個(gè)邏輯指示器。
對(duì)于輸入模塊,電源LED顯示表明輸入設(shè)備處于受激勵(lì)狀態(tài),模塊中有一信號(hào)存在。該指示器單獨(dú)使用不能表明模塊的故障。邏輯LED顯示表明輸入信號(hào)已被輸入電路的邏輯部分識(shí)別
。如果邏輯和電源指示器不能同時(shí)顯示,則表明模塊不能正確地將輸入信號(hào)傳遞給處理器。輸出模塊的邏輯指示器顯示時(shí),表明模塊的邏輯電路已識(shí)別出從處理器來(lái)的命令并接通。除了邏輯指示器外,一些輸出模塊還有一只保險(xiǎn)絲熔斷指示器或電源指示器,或二者兼有。保險(xiǎn)絲熔斷指示器只表明輸出電路中的保護(hù)性保險(xiǎn)絲的狀態(tài);輸出電源指示器顯示時(shí),表明電源已加在負(fù)載上。像輸入模塊的電源指示器和邏輯指示器一樣,如果不能同時(shí)顯示,表明輸出模塊就有故障了。
本公司主營(yíng)產(chǎn)品:
DCS集散式控制系統(tǒng)、PLC可編程控制器、數(shù)控系統(tǒng)、
(CPU處理器、模塊、卡件、控制器、伺服驅(qū)動(dòng)、工作站、驅(qū)動(dòng)器、
馬達(dá)、 內(nèi)存卡、 電源,機(jī)器人備件等)各類工控產(chǎn)品
主要業(yè)務(wù):
ABB DCS卡件
A-B 1756,1747,1785系列 PLC CPU,
Siemens 6DD,6FX,6SC,6FC,6S5系列,
Foxboro 系統(tǒng)卡件,
Triconex 系統(tǒng)模塊,
Rexroth 力士樂全系列產(chǎn)品,
Modicon 停產(chǎn)模塊 等各類工控產(chǎn)品
Schneider 施耐德 140系列PLC,CPU
Ovation 系統(tǒng)模塊
Fincor Model 3266M DC Drive System
Fincor 3167S8003A 800HP 842 KVA 480V VS DC Drive 800 HP
Fincor Model 3265M DC Drive System
FINCOR DC MOTOR DRIVE 300 HP CONTROL 3120M CLASS 3000
FINCOR 6214VT USPP 6214VT
FINCOR 3263M USPP 3263M
NEW FINCOR FIELD REGULATOR BOARD #1029 #106072401C
Enlarge
FINCOR 5200 AC MOTOR CONTOL 5203P0 *NICE*
FINCOR CONTROL BOARD 105874902MOD-G *NEW IN BOX*
FINCOR ACE-F-460V-3P-15HP USPP ACEF460V3P15HP
FINCOR AMERICAN SERIES 6150 AC MOTOR DRIVE ADJ FREQ VFD
FINCOR ELECTRONICS CONTROL BOARD 105874905 *USED*
FINCOR AMERICAN SERIES 6150 AC MOTOR CONTROL *NEW*
Fincor variable speed DC Motor; Model 9315018TF
FINCOR 6140 AC MOTOR CONTROL 9291 *NICE*
FINCOR DC MOTOR CONTROL 2200S30013A *NEW*
ELECTRIC SYSTEMS ESI FINCOR DRIVE 3165M 105496101 400HP
ESI FINCOR DRIVE 105496101 REV B 105496301 105595501
Fincor-3163m
FINCOR 3160M USPP 3160M
FINCOR 6405S0153A USPP 6405S0153A
FINCOR 6404S0103A USPP 6404S0103A
FINCOR 106187501-B *NEW NO BOX*
FINCOR 106187501-F *NEW NO BOX*
FINCOR MOTOR 9250018TF, 5002296, W/ STEARNS BRAKE, 1-087-731-03-QG
FINCOR 6400 ADJUSTABLE FREQUENCY DRIVE 20 HP. (NEW)
FINCOR 5002695 NSFP 5002695
Fincor-2200s
FINCOR 9315018TF-8 NSPP 9315018TF8
FINCOR 9320018TF-B NSPP 9320018TFB
FINCOR 3121M USPP 3121M
IMO FINCOR 105574202-E SNUBBER TRIGGER BOARD FOR 30 DC CONTROL // NEW // NIB //
BOSTON GEAR/FINCOR 6404S0103A 6400 10HP AC MOTOR CONTROL ***NNB***
FINCOR 6143S0073A USPP 6143S0073A
Fincor-3261m
FINCOR 5002696 USPP 5002696
FINCOR 3122M USPP 3122M
FINCOR 6141S0033A USPP 6141S0033A
FINCOR 3261M0033A USPP 3261M0033A
FINCOR 105574201 *NEW NO BOX*
1 NEW FINCOR 9320018TF MOTOR WITH ALL ACCESSORIES L27-4
FINCOR MOTOR 9315018TF
FINCOR 5002693 USPP 5002693
Fincor 6400 6406 20 HP 6406S0203A VS AC Drive 3PH 460V
FINCOR 5002695 USPP 5002695
FINCOR 6403S0073A NSPP 6403S0073A
FINCOR ACE-F-460V-3P-7.5HP NSPP ACEF460V3P75HP
FINCOR 6403S0073A USPP 6403S0073A
FINCOR 5201P0 NSFP 5201P0
FINCOR DC MOTOR CONTROL 2200S10013A *REPAIRED**
FINCOR/ BOSTON GEAR CONTROL 106049601-K CONTROL BOARD *USED*
FINCOR TACHOMETER 3120037 3A2M-050-B14 3A2M050B14
2200-S FINCOR
FINCOR ACE-KL-460V-3P-5HP USPP ACEKL460V3P5HP
105902701-F FINCOR LOGIC PB1 SET FINCOR AUTOMATION NIB
FINCOR ESI 3100M 104595302 3PH DC MOTOR CONTROL
FINCOR 2200P100113A DC MOTOR CONTROL *NEW OUT OF A BOX*
FINCOR DC MOTOR CONTROL 2200S10013A *NEW*
FINCOR BOARD CONTROLLER MCRC201M *NEW IN BOX*
FINCOR 104781301 *NEW NO BOX*
FINCOR ADJUSTABLE 3HP AC MOTOR CONTROL SERIES 6140
FINCOR TACHOMETER 3AM-050-B10 3AM050B10 50VAC/1K 1ph
1 NIB FINCOR 5003447 DC MOTOR Q1-3
FINCOR 2200 Regenerative Dc Motor Control IMO *Tested*
FINCOR 2200P03311 USPP 2200P03311
FINCOR 5713S01503A USPP 5713S01503A
NEW 2200S10013A Fincor IMO DC Motor Control 1 hp 230V
Fincor 2200 DC Motor Controller
Fincor DC Drive 3PH 230/460V 10 / 20 HP # 3152 Adjustable (6656)
FINCOR 5201P0 USPP 5201P0
FINCOR 106180301-B USPP 106180301B
FINCOR 3120M USPP 3120M
FINCOR 106048801 *NEW OUT OF BOX*
FINCOR 5511 NSFP 5511
FINCOR 4150P213B NSFP 4150P213B
FINCOR 5CD154ZA801B831 USPP 5CD154ZA801B831
PRICE PUMP CD150SS-494 WITH FINCOR 5600 SERIES DRIVE
FINCOR 6140 Adjust Frequency AC Drive 48x48 SS Panel
Fincor variable speed DC Motor 9315018TF
FINCOR 106012101-A REV A VOLT/CUR ISO AMPL *NEW OUT OF A BOX*
FINCOR 104714906-60209 USPP 10471490660209
FINCOR 1039818-06 USPP 103981806
FINCOR / ESI 3160M DIGITAL DC MOTOR CONTROL 3160-M
FINCOR 5201D0 DRIVE MOTOR *USED*
Fincor 5200 Adjustable Frequency AC Motor Control 5201P0 Controller NEW
FINCOR 1043906 *USED*
FINCOR 105182503 *NEW NO BOX*
Fincor AC Motor Control M/N 5204P0
Fincor Control Board Field Supply Assembly 106180301-B
FINCOR 5200 AC drive 202P0 230V 50/60HZ 2.2kva 1hp 1 hp
FINCOR/BOSTON 5204P0 AC MOTOR CONTROL 3HP 4.4KVA ****XLNT****
FINCOR 6303EBR USPP 6303EBR
BOSTON/FINCOR 104595701-J POWER SUPPLY BOARD ****XLNT****
FINCOR 106180301-B CONTROL BOARD ***XLNT***
FINCOR 104459901 USPP 104459901
FINCOR 104459908 USPP 104459908
FINCOR 5201P1 USPP 5201P1
FINCOR 9133-C NSPP 9133C
Fincor 6400 6404 10 HP 6404S0103A Adj Freq AC Drive
Fincor ESI 3100M 3 Ph DC Motor Control 3121M 104597801
FINCOR 2200P05011 NSFP 2200P05011
FINCOR DC MOTOR CONTROL DRIVE 5-20HP 20 HP 3161M 3160M
Fincor 5002693 Variable Speed DC Motor 0.5 HP 180VDC
FINCOR 5103 USPP 5103
FINCOR 5105-P USPP 5105P
FINCOR 2200S03311A USPP 2200S03311A
Fincor/Incom Baldor Electric DC Motor 3HP # 9230018TFB
FINCOR 2XV-03 USPP 2XV03
FINCOR 9303309TN - DC MOTOR
FINCOR DC MOTOR - PN 9303309TN - REFURBISHED
FINCOR 2601MKII NSFP 2601MKII
FINCOR MIRC101P NSPP MIRC101P
Fincor 3120 Control Board #104595702
FINCOR ESI DRIVE 3135 10HP 10 HP 460V 104596001
Fincor 6140 6144 10 HP Adjustable Frequency AC Drive
FINCOR ACE-KL-230V-3P-1HP NSFP ACEKL230V3P1HP
FINCOR 2200P05011 NSPP 2200P05011
FINCOR 106168601E USPP 106168601E
FINCOR 1061686-1HM-F USPP 10616861HMF
Fincor 6400 Adjustable Frequency AC Motor Control IMO 6402S0053A Drive
FINCOR 104857902 USPP 104857902
FINCOR 105845301K NSPP 105845301K
FINCOR 4150M1053A USPP 4150M1053A
FINCOR 9132 USPP 9132
FINCOR MIRC101P USPP MIRC101P
FINCOR ELECTRIC VARIABLE SPEED MOTOR DC 5002693 9305018TF 1/2 HP 180 V NEW
FINCOR 1051825 DRIVER BOARD *USED*
FINCOR DC MOTOR 9315018TF, W/BROWNING WORM GEAR RATIO 30-1, 1750 RPM
Fincor 2200 Regenerative DC Motor Control
Fincor IMO 2401 MKII DC Motor Control 104715102-D Rev. D (5759)
FINCOR DC MOTOR CONTROL 3 HP CAT#2200 230 VOLT **NIB**
BOSTON FINCOR CONTROL BOARD 1045960 01 Rev.D 104596001
Fincor RAC-FVT0103B-3 AC Motor Controller AS-IS
FINCOR 103629003 USPP 103629003
Fincor 6400 6402 5 HP 6402S0053A Adj Freq AC Drive 460V
Fincor 6400 6402 5 HP 6402S0053A Adj Freq VS AC Drive
FINCOR ACE-KL-230V-3P-07HP NSFP ACEKL230V3P07HP
FINCOR 3100M DC MOTOR CONTROL DRIVE 10HP 3131M 3130-M
FINCOR 2601MKII USPP 2601MKII
FINCOR ACX4050 USPP ACX4050
FINCOR ACX-4050-WD USPP ACX4050WD
FINCOR ACE-KL-230V-3P-05HP NSFP ACEKL230V3P05HP
FINCOR 106146801 USPP 106146801
Fincor American 6140 Model 9002 AF Drive 460volt 10 amp
FINCOR 105845301K USPP 105845301K
Fincor 5100 5105 5HP Adjustable Frequency AC Drive 5 HP VS
FINCOR ACX2010 USPP ACX2010
Fincor Incom 9330018TF 3 HP TEFC Variable Speed DC Motor, 1750 RPM
Fincor/Incom Baldor Electric 1.5HP Motor DC #9215018TFB
Fincor 5100 5103 3HP Adjustable Frequency AC Drive 3 HP VS
FINCOR 105652101-B USPP 105652101B
FINCOR 105595502 USPP 105595502
FINCOR 106353102 NSPP 106353102
FINCOR 2200P05011 USPP 2200P05011
FINCOR 4160P31043A USPP 4160P31043A
FINCOR 2611AP0 USPP 2611AP0
Fincor 6140 5 HP 6142S0053A Adj Freq VS AC Drive 460V
Fincor 2611B DC Drive 2HP 230V
FINCOR 1042505-01 USPP 104250501
FINCOR 4160P07643A NSFP 4160P07643A
Fincor 104624301 Field Control
FINCOR 2200 DC DRIVE
Fincor 2200 DC controller Repaired by Electricial Sout
FINCOR PC BOARD 1052758 *USED*
HK SYSTEMS/FINCOR HK4030/0313014/106643903 ***NIB***
FINCOR ACE-KL-230V-3P-07HP USPP ACEKL230V3P07HP
FINCOR 5201P0 5200 AC DRIVE ADJUSTABLE FREQUENCY 1/2HP 230V 3A AMP 1.2KVA 59017
FINCOR ACE-KL-230V-3P-05HP USPP ACEKL230V3P05HP
FINCOR 104623401 USPP 104623401
FINCOR 2E13692 USPP 2E13692
FINCOR 2250 USPP 2250
FINCOR ACE-KST-230V-3P-05HP USPP ACEKST230V3P05HP
FINCOR 104300102A NSFP 104300102A
FINCOR 104204808 NSFP 104204808
FINCOR 104714907 NSFP 104714907
FINCOR SNUBBER TRIGGER CIRCUIT BOARD 1055943 105594301 105594301HM-F REV F
FINCOR PID DANCER CONTROL 1900- 41/057102 4`057102 NIB
FINCOR 106347601 USPP 106347601
FINCOR 1047313-04 USPP 104731304
FINCOR MD1 LOGIC BOARD 105683901-D 105683901 REV E
Baldor Fincor 9207509TFB Motor 90VDC 7.8A 3/4HP Frame 56C
FINCOR 4150 USPP 4150
FINCOR TR15341 USPP TR15341
Fincor Control Board 106105702-D (6273)
FINCOR 2660211 FNFP 2660211
FINCOR 2660212B FNFP 2660212B
FINCOR VEL100-21A-24A USPP VEL10021A24A
Fincor 3120 Snubber1049248-01
Baldor Fincor 9210009TFB DC Motor 1HP 1750RPM
Vfd Fincor 5203p0 variable frequency drive
Fincor Boston 3120 Series Control Board Assy 104595701G
Fincor Boston 3120 Series Control Board Assy 104595701J
FINCOR 2501-PD USPP 2501PD
FINCOR PERSONALITY CIRCUIT BOARD CARD 105845301 REV A 1056222
FINCOR DC 180V 180 VOLT MOTOR 9215018TF-B 9215018TFB 1.5 H.P. R.P.M 1750 SER F
FINCOR 2615 USPP 2615
FINCOR 1053351 USPP 1053351
Fincor-2452
FINCOR DRIVE PERSONALITY BOARD 105567502 REV C MD20
Fincor 6330 2 HP Speed Control (ESC1152)
FINCOR 106116101 NSFP 106116101
BOSTON/FINCOR 1046234 FIELD ECONOMY BOARD ****XLNT****
FINCOR 60208 USPP 60208
FINCOR ACX2005-WD USPP ACX2005WD
FINCOR 9302509TNB NSFP 9302509TNB
FINCOR 1F792 USPP 1F792
FINCOR 104204808 USPP 104204808
FINCOR 104714907 USPP 104714907
Fincor 2335 DC Drive 2HP 230V
FINCOR 1044658-01 USPP 104465801
Fincor vfd 15hp 460volt touch safe
FINCOR INCOM 2200 REGENERATIVE DC MOTOR CONTROL
Fincor 2615 Drive Board 106172501 Rev A USED
FINCOR load share board1047832 (104783201)(104783202)(104783203)(104783204)